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弹箭与制导学报 >

2021 , Vol. 41 >Issue 1: 18 - 23

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.01.004

北斗单系统及多GNSS系统组合全球卫星可用性分析

  • 吴有龙 1, 2 ,
  • 杨忠 1 ,
  • 陈维娜 1 ,
  • 姚文进 3 ,
  • 陈闯 4 ,
  • 陈帅 2
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  • 1 金陵科技学院智能科学与控制工程学院,南京 211169
  • 2 南京理工大学自动化学院,南京 210094
  • 3 南京理工大学智能弹药技术国防重点学科实验室,南京 210094
  • 4 沈阳理工大学装备工程学院,沈阳 110159

吴有龙(1987—),男,江苏南京人,副教授,博士,研究方向:卫星导航定位技术、惯性导航技术、GNSS/INS数据信息融合、随机理论及其在导航中的应用。

收稿日期: 2020-03-02

  网络出版日期: 2025-02-11

基金资助

国家自然青年科学基金(61803188)

中央高校基本科研业务费专项资金(30916014101)

江苏省高等学校自然科学研究面上项目(19KJB510028)

江苏省第五期“333高层次人才培养工程”第二层次资助科研项目(2019)资助

收起

Satellite Availability Evaluation on a Global Scale for BDS Stand-alone System and Multi-GNSS System

  • WU Youlong 1, 2 ,
  • YANG Zhong 1 ,
  • CHEN Weina 1 ,
  • YAO Wenjin 3 ,
  • CHEN Chuang 4 ,
  • CHEN Shuai 2
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  • 1 College of Intelligent Science and Control Engineering,Jinling Institute of Technology,Nanjing 211169,China
  • 2 School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
  • 3 ZNDY Ministerial Key Laboratory,Nanjing University of Science and Technology,Nanjing 210094,China
  • 4 School of Equipment Engineering,Shenyang Ligong University,Shenyang 110159,China

Received date: 2020-03-02

  Online published: 2025-02-11

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摘要

为提升GNSS全星座下的定位性能,需要研究GPS、GLONASS、BDS和GALILEO多系统星座融合的性能。采用全球经纬度5°×2.5°分辨率进行空间采样,对不同高度角和多星座组合系统进行评估,包括可见卫星数、PDOP值以及PDOP可用性等性能指标。结果表明,单BDS系统在10°截止高度角下PDOP可用性达到98.6%以上,双系统在30°截止高度角下可用性达到95%以上,四系统在40°截止高度角下PDOP可用性达到100%,双系统和四系统融合能显著提高系统的可用性。

关键词： BDS; GNSS; 可用性; 可见星数; PDOP

本文引用格式

吴有龙 , 杨忠 , 陈维娜 , 姚文进 , 陈闯 , 陈帅 . 北斗单系统及多GNSS系统组合全球卫星可用性分析[J]. 弹箭与制导学报, 2021 , 41(1) : 18 -23 . DOI: 10.15892/j.cnki.djzdxb.2021.01.004

Abstract

In order to provide GNSS positioning performance under the whole constellation for the global users, the performance of GPS, GLONASS, BDS and GALILEO multi-system constellation fusion needs to be studied. Spatial sampling is conducted according to the global latitude and longitude resolution of 5°×2.5° to evaluate the system with different cut-off angles and multi-constellation combination, including the number of visible satellites, PDOP value and PDOP availability. The results show that the PDOP availability for BDS stand-alone system under 10° cut-off angle is over 98.6%, that for dual-system under 30° cut-off angle is over 95%, and that for four-systems under 40° cut-off angle is up to 100%, dual-system and four-system fusion can significantly improve the satellite availability.

Key words： BDS; GNSS; availability; number of visible satellites; PDOP

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